The music mogul has revealed he worked with the Halo hitmaker on the songs she appears to have scrapped.
In a post on Twitter.com, he writes, "I just did two songs for her new album, well, I tried. I think she scrapped the record. The record was supposed to be done and they have been hitting me up for brand new ideas."
He adds, "I like to work from scratch, (but) sometimes I get called in to fix records."